Lilies: Certain species of lilies, including Easter lilies, tiger lilies, and daylilies, are highly toxic to cats and can cause kidney failure if ingested.
Sago Palm (Cycas revoluta): Sago palms contain toxins called cycasin, which can be harmful to pets if ingested.
Philodendron: Philodendrons contain calcium oxalate crystals, which can cause irritation and swelling in the mouth and throat if chewed or ingested by pets.
Dieffenbachi: Dieffenbachia, also known as dumb cane, contains calcium oxalate crystals similar to those found in philodendrons, which can cause oral irritation, drooling.
Pothos (Epipremnum aureum): Pothos, also known as devil's ivy, contains calcium oxalate crystals and can cause oral irritation, drooling, and vomiting if ingested by pets.
Oleander (Nerium oleander): Oleander is a highly toxic plant that contains cardiac glycosides, which can affect the heart and cause symptoms such as vomiting.
Azalea (Rhododendron spp.): Azaleas contain toxins called grayanotoxins, which can cause vomiting, diarrhea, weakness, and even coma or death in pets if ingested in large amounts.
Peace Lily (Spathiphyllum spp.): Peace lilies contain calcium oxalate crystals and can cause oral irritation, drooling, and vomiting if chewed or ingested by pets.
Snake Plant (Sansevieria spp.): Snake plants contain saponins, which can cause gastrointestinal upset, including vomiting and diarrhea, if ingested by pets.
Aloe Vera (Aloe vera): While aloe vera is commonly used for its medicinal properties, the gel inside the plant can cause gastrointestinal upset in pets if ingested.